Measurement-computing PCI-DAS6071 Bedienungsanleitung PDF herunterladen (Seite 34)

Chapter 5

Specifications

All specifications are subject to change without notice.

Typical for 25 °C unless otherwise specified.

Specifications in italic text are guaranteed by design.

Analog input

Table 1. Analog input specifications

Parameter

Specification

A/D converter type

Successive approximation

Maximum sample rate

1.25 MS/s

Resolution

12 bits, 1-in-4096

Number of channels

64 single ended / 32 differential, software selectable

Input ranges

Bipolar: ±10 V, ±5 V, ±2.5 V, ±1 V, ±0.5 V, ±0.25 V, ±0.1 V, ±0.05 V

Unipolar: 0 to 10 V, 0 to 5 V, 0 to 2 V, 0 to 1 V, 0 to 0.5 V, 0 to 0.2 V,

0 to 0.1 V

Software selectable

A/D pacing

(software programmable)

Internal counter – ASIC. Software selectable time base:

 Internal 40 MHz, 50 ppm stability

 External Source via AUXIN<5:0>, software selectable.

External convert strobe: A/D CONVERT

Software paced

Burst mode

Software selectable option, burst rate = 800 nS

A/D gate sources

External digital: A/D GATE

External analog: ATRIG input

CH0 IN through CH63 IN

A/D gating modes

External digital: Programmable, active high or active low, level or edge

External analog: Refer to Analog trigger on page 41

A/D trigger sources

External digital: A/D START TRIGGER

A/D STOP TRIGGER

External analog: ATRIG input

CH0 IN through CH63 IN

A/D triggering modes

External digital: Software-configurable for rising or falling edge.

External analog: Refer to Analog trigger on page 41

Pre-/Post-trigger: Unlimited number of pre-trigger samples, 16 Meg post-

trigger samples.

ADC pacer out

Available at user connector: A/D PACER OUT

RAM buffer size

8K samples

Data transfer

DMA

Programmed I/O

DMA modes

Demand or non-demand using scatter gather.

Configuration memory

Up to 8 K elements. Programmable channel, gain, and offset

Streaming-to-disk rate

1.25 MS/s, system dependent

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 48 49

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